Groussey is a village in the commune Jullouville, in the Manche département of Normandy, France. It is located 600 m from the sea in the bay of Mont Saint-Michel. The nearest two villages are Carolles (to the south) and Bouillon (to the north). A coast road passes to the west (D911) from Carolles in the south through Edenville to Jullouville. Jullouville is a major seaside resort in the summer months.